Stormwater Management and Design Guidance Manual

West Virgina Department of Environmental Protection recently released the Stormwater Management and Design Guidance Manual. You can download the entire manual from this website. This manual provides design and guidance on designing and implementing stormwater management practices that will manage rainfall on site in accordance with West Virginia's small Municipal Separate Storm Sewer System (MS4) general permit.
This manual contains stormwater management practices that utilize the Runoff Reduction Method, which is a method that utilizes infiltration, harvesting and evapotranspiration of rainfall on site.  For more information about the runoff reduction method please click here.

Erratum notice: If you find errors or broken links please email Jeff Smith with that information at  

The first file below is the entire manual in PDF format.  It is a large file and may take time to download depending on your internet connection speed.  The files beneath the first one are separated by Chapter, and the individual stormwater management practices are each provided in their own file.

Stormwater Management and Design Guidance Manual (entire document)  PDF 21MB 
Chapter 1 -  Introduction    
Chapter 2  - West Virginia Stormwater Regulatory Framework    
Chapter 3 - Best Management Practice Selection and Design Methodology    
Chapter 4 - Stormwater BMP Specifications    
Chapter 4.1 - Self crediting Better Site Design Practices    
Chapter 4.2.1 Sheet Flow to Vegetated Filter Strips and Conservation Areas    
Chapter 4.2.2 - Impervious Surface Disconnection     
Chapter 4.2.3 - Bioretention    5MB
Chapter 4.2.4 - Permeable Pavement     
Chapter 4.2.5 - Grass Swales     
Chapter 4.2.6 - Infiltration    
Chapter 4.2.7 - Regenerative Stormwater Conveyance System    
Chapter 4.2.8 - Rainwater Harvesting     
Chapter 4.2.9 - Vegetated Roofs     
Chapter 4.2.10 - Filtration Practices    
Chapter 4.2.11 - Stormwater Wetlands     
Chapter 5 - Stormwater Hotspots     
Chapter 6 - Design Examples     2.6MB
Appendix A - Plan Review, Construction, and Maintenance Checklists     
Appendix B - Infiltration and Soil Testing     
Appendix C - Stormwater Management Design in Karst Areas     
Appendix D -  Soil Amendments    
Appendix E -  Treatment Volume Peak Flow Rate    
Appendix F -  BMP Landscaping Plants    
Appendix G -  Resources for Design of Wet and Dry Ponds    
Appendix H -  Considerations for Impaired Waters    
Appendix A Checklists - Excel Spreadsheets    
Construction Checklist  XLS  
Maintenance Checklist  XLS  
Plan Review Checklist  XLS  
Rainwater Harvesting Spreadsheet  *Note* This a large EXCEL file and may take time to download  XLS  124MB
 CAD Drawing  DWG  4MB